r.mapcalc Raster map calculator. Raster (r.*) QgsProcessingParameterMultipleLayers|maps|Raster maps used in the calculator|3|None|True QgsProcessingParameterString|expression|Expression to evaluate. Syntax e.g. `raster_out=raster1+raster2`. Use original filenames, without extension|None|True|True QgsProcessingParameterFile|file|File containing expression(s) to evaluate (same rule for raster names than above)|QgsProcessingParameterFile.File|txt|None|True QgsProcessingParameterString|seed|Integer seed for rand() function|None|False|True *QgsProcessingParameterBoolean|-s|Generate random seed (result is non-deterministic)|False QgsProcessingParameterFolderDestination|output_dir|Results Directory